Orbit Fit and Astrometric record for 13TE187

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.

# Object: 13TE187   
# Created Wed May  8 01:15:22 2024
# Orbit generated from Bernstein formalism
# Fitting     33 observations of     33
# Arc:   3.95y
# First observation: 2013/10/13
#  Last observation: 2017/09/24
Preliminary a, adot, b, bdot, g, gdot:
   0.000035   0.020113  -0.000003   0.000199   0.022290   0.000000
# Chi-squared of fit:     6.87 DOF:     60 RMS:  0.08
# Min/Max residuals:    -0.25    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.472436E-05  2.004185E-02  1.607892E-07  1.976571E-04  2.214446E-02 -1.506875E-03
# Covariance matrix:
  1.6593E-13 -4.9533E-14 -8.8695E-16  1.6941E-16  1.0628E-13  8.9281E-14
 -4.9533E-14  2.2366E-13 -1.9149E-15  2.5779E-15  1.7587E-13  2.9527E-12
 -8.8695E-16 -1.9149E-15  1.2635E-13 -4.0401E-14 -4.4868E-15 -3.3261E-14
  1.6941E-16  2.5779E-15 -4.0401E-14  1.9936E-14  3.0561E-15  3.8973E-14
  1.0628E-13  1.7587E-13 -4.4868E-15  3.0561E-15  4.8436E-13  3.1953E-12
  8.9281E-14  2.9527E-12 -3.3261E-14  3.8973E-14  3.1953E-12  4.4044E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.475517   11.593919   -0.139496   -0.042541   -0.986697  2456578.646678
# Heliocentric elements and errors
Epoch:              2456570.5000  =  2013/10/05
Mean Anomaly:          247.91488 +/-     0.145
Argument of Peri:       43.81838 +/-     0.133
Long of Asc Node:       88.44905 +/-     0.009
Inclination:             2.48948 +/-     0.000
Eccentricity:         0.08296935 +/-    0.0003
Semi-Major Axis:     44.50768476 +/-    0.0057
Time of Perihelion: 2490337.8042 +/-      43.2
Perihelion:          40.81491124 +/-    0.0130
Aphelion:            48.20045828 +/-    0.0134
Period (y)              296.9345 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           45.13415139 +/-    0.0014
Ecliptic Y            9.40532820 +/-    0.0003
Ecliptic Z           -1.95051413 +/-    0.0001
Ecliptic XDOT        -0.00068546 +/-    0.0000
Ecliptic YDOT         0.00238869 +/-    0.0000
Ecliptic ZDOT         0.00003260 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.14494908 +/-    0.0014
Geocenter to KBO     45.15801284 +/-    0.0014
# Hcoef:  6.48

The following table shows the complete astrometric record for 13TE187. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (13TE187) followed by the observatory code and reference code for the source of the astrometry.

2013 10  13.14590  00 46 30.798  +02 18 22.32  22.9i 13TE187   W84  C~4yRC      
2013 10  13.14590  00 46 30.80   +02 18 22.3   23.0i 13TE187   W84  C~3clP      
2013 10  13.14731  00 46 30.799  +02 18 22.41  22.4z 13TE187   W84  C~4yRC      
2013 10  13.14731  00 46 30.80   +02 18 22.4   22.5z 13TE187   W84  C~3clP      
2013 11  22.10101  00 44 11.152  +02 04 50.28  23.2r 13TE187   W84  C~4yRC      
2013 11  22.10101  00 44 11.15   +02 04 50.3   23.3r 13TE187   W84  C~3clP      
2013 11  22.10256  00 44 11.149  +02 04 50.10  22.8i 13TE187   W84  C~4yRC      
2013 11  22.10256  00 44 11.15   +02 04 50.1   22.9i 13TE187   W84  C~3clP      
2013 11  22.14496  00 44 11.028  +02 04 49.52  22.2z 13TE187   W84  C~4yRC      
2013 11  22.14496  00 44 11.03   +02 04 49.5   22.4z 13TE187   W84  C~3clP      
2014 10  21.23370  00 50 12.119  +02 42 37.04  23.2r 13TE187   W84  C~4yRC      
2014 10  21.23370  00 50 12.12   +02 42 37.0   23.3r 13TE187   W84  C~3clP      
2014 11  14.06558  00 48 45.943  +02 34 15.83  22.9r 13TE187   W84  C~4yRC      
2014 11  14.06558  00 48 45.94   +02 34 15.8   23.1r 13TE187   W84  C~3clP      
2016 09  01.36467  01 01 52.809  +03 57 59.43  23.4i 13TE187   W84  C~4yRC      
2016 09  01.36467  01 01 52.81   +03 57 59.4   23.3i 13TE187   W84  C~3clP      
2016 09  01.36604  01 01 52.796  +03 57 59.30  23.5r 13TE187   W84  C~4yRC      
2016 09  01.36604  01 01 52.80   +03 57 59.3   23.6r 13TE187   W84  C~3clP      
2016 09  01.36741  01 01 52.816  +03 57 59.26  24.2g 13TE187   W84  C~4yRC      
2016 11  05.16584  00 57 40.446  +03 31 42.42  23.1r 13TE187   W84  C~4yRC      
2016 11  05.16584  00 57 40.45   +03 31 42.4   23.0r 13TE187   W84  C~3clP      
2016 11  05.16722  00 57 40.438  +03 31 42.33  22.8i 13TE187   W84  C~4yRC      
2016 11  05.16722  00 57 40.44   +03 31 42.3   22.8i 13TE187   W84  C~3clP      
2016 11  05.16861  00 57 40.433  +03 31 42.52  24.3g 13TE187   W84  C~4yRC      
2016 11  06.16691  00 57 36.822  +03 31 21.69  22.0z 13TE187   W84  C~4yRC      
2016 11  06.16691  00 57 36.83   +03 31 21.8   22.6z 13TE187   W84  C~3clP      
2016 11  18.08956  00 56 57.502  +03 27 42.89  22.5i 13TE187   W84  C~4yRC      
2016 11  18.08956  00 56 57.50   +03 27 42.9   22.5i 13TE187   W84  C~3clP      
2017 08  28.28676  01 06 20.672  +04 26 48.20  23.2r 13TE187   W84  C~4yRC      
2017 09  14.32230  01 05 24.513  +04 20 31.42  23.1i 13TE187   W84  C~4yRC      
2017 09  18.30613  01 05 09.566  +04 18 54.11  23.2r 13TE187   W84  C~4yRC      
2017 09  18.30750  01 05 09.559  +04 18 54.05  23.4g 13TE187   W84  C~4yRC      
2017 09  24.29119  01 04 46.163  +04 16 23.87  22.3z 13TE187   W84  C~4yRC      

The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.

     1   0.0000      0.00    -0.09       0.00    -0.00
     2   0.0000      0.02    -0.07      -0.03    -0.03
     3   0.0000      0.05     0.06       0.08     0.07
     4   0.0000      0.06     0.07       0.06     0.06
     5   0.1094  -2244.18     0.07      68.98     0.11
     6   0.1094  -2244.20     0.05      69.01     0.14
     7   0.1094  -2244.28     0.03      68.83    -0.05
     8   0.1094  -2244.29     0.02      68.83    -0.04
     9   0.1095  -2246.17    -0.12      68.98    -0.03
    10   0.1095  -2246.19    -0.14      69.01     0.00
    11   1.0215   3621.69     0.07      47.34    -0.13
    12   1.0215   3621.70     0.08      47.38    -0.09
    13   1.0867   2236.84     0.00      88.63    -0.01
    14   1.0867   2236.90     0.05      88.64    -0.00
    15   2.8863  15073.09    -0.01     144.12     0.02
    16   2.8863  15073.09    -0.01     144.09    -0.01
    17   2.8863  15072.91    -0.12     144.05    -0.04
    18   2.8863  15072.86    -0.17     144.07    -0.02
    19   2.8863  15073.12     0.16     143.92    -0.17
    20   3.0637  10963.39     0.11     152.39    -0.04
    21   3.0637  10963.34     0.06     152.43    -0.00
    22   3.0637  10963.21     0.01     152.36    -0.08
    23   3.0637  10963.19    -0.00     152.40    -0.04
    24   3.0637  10963.20     0.09     152.60     0.16
    25   3.0665  10905.28    -0.09     154.42     0.04
    26   3.0665  10905.12    -0.25     154.36    -0.01
    27   3.0991  10275.96    -0.00     181.02     0.03
    28   3.0991  10275.98     0.02     181.00     0.00
    29   3.8744  19467.70     0.08     192.73     0.10
    30   3.9211  18539.65     0.11     168.64     0.12
    31   3.9320  18293.91    -0.01     165.04     0.00
    32   3.9320  18293.79    -0.04     165.03    -0.01
    33   3.9484  17910.05    -0.05     161.42    -0.02

The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.

13TE187    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.750    44.767    44.734
ecceobj         0.078     0.079     0.078
incobj          2.490     2.490     2.490
qmin           39.693    39.232    39.800
qmax           49.544    50.272    49.506
amean          44.505    44.557    44.488
amin           44.134    44.157    44.127
amax           44.902    44.980    44.869
emean           0.088     0.092     0.087
emin            0.070     0.071     0.070
emax            0.104     0.118     0.103
imean           0.948     0.888     0.961
imin            0.163     0.103     0.161
imax            1.488     1.498     1.510
excite_mean     0.090     0.094     0.089
fracstop        1.000     1.000     1.000
cjmean          3.098     3.097     3.098

libcent 0      -180.0    -180.0     183.0
libamp  0      -180.0    -180.0     162.1
libcent 1      -180.0    -180.0    -180.0
libamp  1      -180.0    -180.0    -180.0
libcent 2      -180.0    -180.0    -180.0
libamp  2      -180.0    -180.0    -180.0
libcent 3      -180.0    -180.0    -180.0
libamp  3      -180.0    -180.0    -180.0
libcent 4      -180.0    -180.0    -180.0
libamp  4      -180.0    -180.0    -180.0

kozaimean       177.5     194.7     176.9
kozaiamp        179.9     180.0     180.0